摘要
城市公共绿地具有重要的生态功能和社会功能,良好的评价体系有利于其科学的规划和管理。目前主要采用人均公共绿地和服务半径两个指标对公共绿地质量进行评价,不能较好地评价其生态和社会功能。本文根据公共绿地的功能特点,按照评价体系可操作性和可比性要求,选择单位公园绿化覆盖率、面积大小、公园服务半径内的居民区和单位面积比例、服务半径内道路面积比例作为评价因子。并以山东省泰安市为研究区,利用遥感影像监督分类结合ArcGIS空间分析方法从SPOT5影像中获取评价因子数据,利用多级模糊评判方法对研究区城市公共绿地进行评判。模糊评价结果为泰安市公共绿地的生态功能和社会功能综合得分为77.449分,等级标准为良好。
Fine evaluation model is beneficial to public green space planning and management due to its important ecological and social function. Two indexes, public green space per person and public green space service radius, are used to evaluate its quality, and which cannot reflect its ecological and social function. In this paper, four factors, percentage of greenery coverage, size of area, ratio of community area inside service radius, ratio of road area inside service radius of each public green space, were chosen according to public green space function characteristic and evaluation requirement. Taian, Shandong Province, was taken as study area and RS supervised classification and ArcGIS spatial analysis methods were used to acquire factors data from SPOT5 image. Fuzzy multi-level synthetic evaluation was used to evaluate the public green space of entire urban region. The results showed that the synthetic grade of ecological and social function of public green space for Taian is 77. 449, which leads to a fine quality grade according to the evaluation standard.
出处
《测绘科学》
CSCD
北大核心
2010年第1期154-155,共2页
Science of Surveying and Mapping
基金
山东省建设厅资助项目(38463)
